
miércoles, 24 de marzo de 2010
miércoles, 17 de marzo de 2010
Cognitive Theory of Depression

The Cognitive Theory of Depression basically states that the causes of depression are the negative view of oneself. They see themselves as worthless, defficient, unlovable and find in themsleves any possible defect. These people feel hopeless and cannot see any light at the end of the tunnel. This hopelessness and misery ultimately leads to depression and in worst cases, to wanding to end your life. There are many different cognitive factors that have been identified in psychology.

Source:
http://www.psychologyinfo.com/depression/cognitive.htm
Environmental Theory of Depression

The Environmental theory of depression states that the causes for this disorder are outside of ourselves. They are not genetic or linked to malfunctions or imbalances in the brain. These things that will cause depression are events that occur in our lives with the people that sorround us. They are sometimes referred to as sociological factors because they concern the outside world. The reason that these factors cause depreesion is demostrated by the fact that it has been proven that outside influences affect our inner state of mind. The things that happen with the outside world take a toll on our behavior and emotions. If the situations that sorround us are negative, it is most likely that this may lead to clinical depression.

In any case, environmental factors are proven to be great catalysts of depression.
Sources
http://www.allaboutdepression.com/cau_04.html
Biological Theory of Depression

The Biological Theory states that the cause of depression is a biological one in which there is a shortage of Noradrenaline and Serotonin in the synaptic clepts of neurons in the brain. The study of imbalances of Serotonin is more common that that of other neurotransmitters. However, studies show that there is not only a decrease in these chemicals, but an imbalance in the regulatory patterns and consequent overactivity of certain transmitters in some areas in the brain. A molecular and cellular theory of depression states that stress causes vulnerability and the therapeutic action of antidepressant treatments occur via intracellular mechanisms that decrease or increase, respectively, the neurotrophic factors necessary for the survival and function of particular neurons.

Sources
http://herkules.oulu.fi/isbn9514270215/html/x294.html
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